If Tropical Storm Marie reaches Southern California, it could bring heavy rain, gusty winds, and high surf, particularly affecting coastal areas. Beachgoers during the Labor Day weekend may encounter hazardous conditions, including strong rip currents and large waves. South-facing shores are at a moderate risk of coastal flooding. However, the NWS has noted a low probability of widespread heavy rain or significant offshore winds. The uncertainty in the storm's path underscores the need for vigilance, especially for those in vulnerable coastal regions.